Road-drag.



J S. OLSON.

ROAD DRAG.

APPLICATION FILED NOV. 3. 1916.

Patented May 22, 1917.

Inventor Witnesses zzmw Attorneys Specification of LettersPatent.

iosnrirs OLSON, on HENRIETTE, MINNESOTA.

Bonn-Dane.

Patented May 22, 1917.

Application filed'Novmber 3', 1916. Serial No. 129,368. r

To all whom it may concern:

Be it known that I, JOSEPH S. OLSON, a

citizen of the i United States, residing at 5;. Henriette, in the county of Pine an'dzStatei of Minnesota, have invented a new and useful R0adDrag, of which the following is a specification.

The device forming the subject matter of this application is a road drag, and one object, of the invention is to provide a drag of simple construction embodying means whereby the scraper bars may be held at adjusted angles with respect to the draft line, said means being adapted, also, so to position the scraper bars that the scraper bars will discharge toward one side of the road or toward the other, at the will of an operator.

Another object of the invention is to provide novel means whereby the point of application of the draft force may be adjusted transversely of the scraper.

, It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the present invention appertains.

With the above and other objects in view which will appear as the description proceeds, the invention residesin the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in top plan, a road drag constructed in accordance with the present invention; and Fig. 2 is a side elevation of the structure shown in Fig. 1.

The road drag forming the subject matter of this application embodies longitudinal parallel sills 1. Disposed transversely of the sills 1 are bottom bars 2 which constitute scrapers. Superposed on the longitudinal sills 1 and alined vertically with the bottom bars or scrapers 2 are transverse top bars 3, which may be omitted if desired. Pivot elements 4 unite the bottom bars or scrapers 2 and the top bars 3 with the sills 1. The scraper bars 2 may be equipped with forwardly presented face plates 5. The ends of the scraper bars 2 are upwardly beveled as shown at 6, to facilitate the passage of the scraper bars-along the surface of the roadway when, as shown in Fig. 1, the scraper bars are disposed acutely with respect to the draft line.

Secured to the forward ends of the sills 1 are clevises 7 which are connected by a chain 8. The numeral 9 denotes a clevis with which the draft animals may be connected. The clevis 9 carries a bolt 10 adapted to be engaged in any of the links of the chain 8. Consequently, the clevis 9 may be secured to the chain at adjusted points, longitudinally of the said chain, thereby to vary the point of application of the draft.

Mounted on the inner face of one of the sills l is a hook or other attaching member 11. Mounted on this sill- 1 to the rear of the hook 11 are a plurality of hooks 14. Mounted on the other sill 1 opposite to the hook 11 is a hook 12, and hooks 15, disposed opposite to the hooks 14, are mounted on the said sill l which carries the hook 12. The numeral 16 denotes a flexible tension element which may be a chain. One end of the chain 16 is secured to the hook 11, and the other end of the chain is secured to any one of the hooks 15. Owing to the construction last above defined, the scraper bars 2 are disposed at an acute angle to the draft line, as shown in Fig. 1, and by mounting the rear end of the chain 16 on different ones of the hooks 15, the angle defined by the scraper bars 2 with respect to the draft line may be varied.

In Fig. 1 of the drawings, the scraper bars 2 are shown as so positioned that they will discharge toward the right hand side of the roadway. It is obvious that at times it may be desirable to cause the scraper bars 2 to discharge toward the left side of the roadway. Under such circumstances, the forward end of the chain 16 is engaged with the hook 12, and the rear end of the chain 16 is engaged with one of the hooks 14.

From the foregoing description it will be obvious that the scraper bars 2 may be made to discharge toward either side of the roadway, and that the angles defined by the scraper bars 2 with respect to the draft line may be varied, when the scraper bars are discharging toward either side of the roadway.

Having thus described the invention, what is claimed is A road drag comprising parallel longitudinal sills; transverse scrapers pivoted to the sills; holding elements carried by the Vnally of either sill to vary the angle besills and spaced apart longitudinally .of the tween the scrapers and the draft line.

sills; and a diagonal" tension element offixe'd 'In'testimony that I claim the foregoing length having its extreme ends engaged With asmy own, I have hereto aflixed my signa- 5 certain of the holding elements of the reture in the presence of tWo Witnesses.

spective sills, both ends of the tension ele- V m ent being shifttble'from one sill to the JOSEPH OLSON other to change the direction oflateral dis- Witnesses: charge of the scrapers, and one end of the P. S. OLSEN, 10' flexible element being shiftab'le 'longitlidi- ROY E. SANDER.

flopies of this: patent may beobtained for five cents (tummy addressing the Commissioner of Patents,

"WashingtbmD' GP 

